Mem. Nat. Mus. Vict., IX, 1936. 
AN EXTENDED DESCRIPTION OF PSEUDOMYS 
NOVAE-HOLLANDIAE, WITH REMARKS ON ITS 
AFFINITY TO P. HEBMANNSBURGENSIS. 
By C. W. Brazenor, 
Mammalogist, National Museum. 
(Plate II.) 
The following- description is based on a series of 27 animals 
which were collected by W. Blandowski near the junction of 
the Murray and Darling Rivers in 1857. Two specimens from 
the series were recently sent to the British Museum of Natural 
History, South Kensington, and I am indebted to Mr. M. A. C. 
Hinton, Deputy-Keeper of Zoology, for comparing them with 
the type. They were found to be in perfect agreement. 
Pseudomys (Leggadina) novae-Jiollandiae (Waterhouse). 
Mus novae-hollandiae Waterhouse, Proc. Zool. Soc., p. 146, 1842; 
Gould, Mamni. Aust., iii, pi. xxii, 1863 ; Ogilby, Aust. Mus. Cat. 
No. 16, Aust. Mamm., p. 109, 1892. 
Pseudomys (Gyomys) novae-hollandiae Thomas, Ann. Mag. Nat. Hist., 
(8), vi, p. 607, 1910. 
Size small. General colour about buffy brown pencilled with darker 
hairs on the back. Dorsal fur (9-10 mm.) slate grey for three-fourths of 
its length, then wood brown with darker tips. Long black hairs numerous. 
Sides of body and outer sides of limbs lighter. Head as body; cheeks 
lighter, upper lip white. Mysticial vibrissae dense, long (24 mm.) ; black 
with a few anterior hairs white. Ears long, oval in outline; inner surface 
almost naked, outer surface clothed with dark brown adpressed hair. 
Ventral surface and inner side of limbs soiled buffy-white. Line of demarca- 
tion sharply marked. Ventral fur basally grey for half its length, the tint 
being lighter on the chest and throat than on the lower part of the body. 
Tail about as long as head and body; white below except towards the tip 
where it is uniformly brown; clothed with stiff hairs which are not suffi- 
ciently numerous to hide scales. Scales about 15 to centimetre. Manus and 
pes buffy white ; sparsely covered with adpressed hair which barely hides the 
skin. 
Skull. — All skulls in the series have the occipital region cut away. The 
braincase is smooth and rounded and the anterior edge of the zygomatic 
plate almost vertical and very slightly concave. 
Teeth. — Laminae slightly tilted. First molar with an anterio-internal 
cingular cusp which in some specimens is well marked but in others less so. 
Dimensions of Skin. — Head and body, 75 mm.; tail, 74 mm.; hind foot, 
19 mm.; ear, 15'8 mm. 
Dimensions of Skull. — Back of parietals to tip of nasals, 20 mm. ; nasals, 
7-5 X 2 3 mm.; interorbital breadth, 3 5 mm.; palate length, 12 3 mm.; 
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